Question

Find the circumference of a circle r=9

Answer 1

56.52

Explanation:

i did the iready lol

Answer 2

254.34

Explanation:

You first have to know the formula which is

`c = \pi \: {r}^(2)`

You multiply 9 by 9 which gives you 81.

`c = \pi * 81`

pi equals 3.14

so 3.14 × 81 = 254.34